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Impacts of on oxygen sensitivity, gene expression, and murine infection in 630∆.
J Bacteriol
January 2025
Department of Medicine, Division of Gastroenterology and Hepatology, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin, USA.
infection (CDI), characterized by colitis and diarrhea, afflicts approximately half a million people in the USA every year, burdening both individuals and the healthcare system. 630Δ is an erythromycin-sensitive variant of the clinical isolate 630 and is commonly used in the research community due to its genetic tractability. 630Δ possesses a point mutation in , an autoregulated transcriptional repressor that regulates oxidative stress resistance genes.
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Eur J Med Res
January 2025
Department of Oncology, Jingjiang People's Hospital Affiliated With Yangzhou University, Jingjiang, 214500, China.
Cholesterol metabolism is abnormally active in tumour cells. Metabolic enzymes related to cholesterol metabolism are upregulated in tumours, but their nonmetabolic functions remain unclear. We found that MVK (mevalonate kinase) is upregulated in lung adenocarcinoma tissues vs.
View Article and Find Full Text PDFHistone Methyltransferase G9a in Primary Sensory Neurons Promotes Inflammatory Pain and Transcription of and via Bivalent Histone Modifications.
J Neurosci
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Center for Neuroscience and Pain Research, Department of Anesthesiology and Perioperative Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, USA
Transient receptor potential ankyrin 1 (TRPA1) and vanilloid 1 (TRPV1) channels are crucial for detecting and transmitting nociceptive stimuli. Inflammatory pain is associated with sustained increases in TRPA1 and TRPV1 expression in primary sensory neurons. However, the epigenetic mechanisms driving this upregulation remain unknown.
View Article and Find Full Text PDFMulti-tissue characterization of the constitutive heterochromatin proteome in Drosophila identifies a link between satellite DNA organization and transposon repression.
PLoS Biol
January 2025
Institute of Biochemistry, ETH Zürich, Zürich, Switzerland.
Noncoding satellite DNA repeats are abundant at the pericentromeric heterochromatin of eukaryotic chromosomes. During interphase, sequence-specific DNA-binding proteins cluster these repeats from multiple chromosomes into nuclear foci known as chromocenters. Despite the pivotal role of chromocenters in cellular processes like genome encapsulation and gene repression, the associated proteins remain incompletely characterized.
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bioRxiv
December 2024
Division of Developmental Biology, Eunice Kennedy-Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda MD 20892, USA.
The eukaryotic genome is packaged into chromatin, which is composed of a nucleosomal filament that coils up to form more compact structures. Chromatin exists in two main forms: euchromatin, which is relatively decondensed and enriched in transcriptionally active genes, and heterochromatin, which is condensed and transcriptionally repressed . It is widely accepted that chromatin architecture modulates DNA accessibility, restricting the access of sequence-specific, gene-regulatory, transcription factors to the genome.
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